southwick



(NoModeL) 2 Sheet-S -Sheet 1. O. A. SOUTHWIOK.

MACHINE FOR GLAZING AND PEBBLING LEATHER.

Patented Aug. 31,1897.

\MTNEEISES JWW 2 Sheets-Sheet 2.

Patented Aug. 31,1897.

7 (No Model. 0. A. SOUTHWIGK, MACHINE FOR GLAZING AND PEBBLING LEATHER.NO. 589,103. v

WITNESSES wflz' J8.

UNITED. STATES PATENT OFFICE.

CHARLES A. SOUTHWICK, OF PEAB ODY, MASSACHUSETTS, ASSIGNOR OF ONE-HALFTO HORACE A. SOUTHVICK, OF SAME PLACE.

MACHINE FOR GLAZING AND PEBBLING LEATHER.

SPECIFICATION forming part of Letters Patent No. 589,103, dated August31, 1897.

Application filed January 23, 1897. Serial No. 620,336. (No model.)

To (LZZ whom it may concern:

Be itknown that 1, CHARLES A. SoUrHwIcK, a citizen of the United States,residing in Peabody, in the county of Essex and State of Massachusetts,have invented new and useful Improvements in Machines for Glazing andPebbling Leather, of which the following is a specification. I

This invention relates to machines for. glazing, polishing, dicing, andpebbling leather;

' and it has for its objects, first, to impart a greater rigidity to theportion of the frame above the bed and to adapt the pendulum to theconstruction by which said rigidity is accomplished; second, to even thestroke of the agate and agate-holder byan adjustment thereof instead ofmoving the table or bed,

and, third, to regulate and fix the height and inclination of the tableand the relative tension of the lifting-screws which support said table,all by means of the novel construction and combinations of partshereinafter described, and illustrated in the accompanying embodying myimprovements.

Fig. 3 is a detail otally connected at Dto the pendulum E, be-.

low described, and constitutes in connection therewith a toggle orjointed lever. Bolted at d to the under side of the plate D", making aportion of the lever D, is the hand or agate-holder F, whose two jawsclamp and hold the agate F in the usual manner. The under surface of theplate D is formed with the downwardly-proj ecting and substantiallyV-shaped rib e, which constitutes a fulcrum for the holder F, which isgrooved on its upper side in order to receive and center said r ib. Bythis means the bolts d, which pass loosely through the plate D", canadjust the angle of the holder and agate so that the latter will bearequally upon the leather to be treated and not produce streaks at eitheredge during the stroke, as would be the case if it were to bear harderon one side than on the other.

G represents the bed supporting the platform G, upon which is securedthe leather S to be treated. This bed is supported by the table g.

, H H are side pieces to which the uprights or legs H, supported by theframe, are bolted.

H" is a base-piece bolted at h to and supported by the legs H. Set inthe under side of the base-piece H" are three metallic nuts h, one beinglocated centrally near the rear edge thereof and the other two beinglocated near the front edge, as indicated by broken lines in Fig. 3.Bolts or screws I are engaged by said nuts and extend up through plainopenings in the base-piece H and the table 9. The single screw or boltin the rear portion of the frame is about twice the diameter of one ofthe two screws in thefront portion. Each bolt is provided at its lowerend with a round head I, at its upper end with a round nut 1, betweenthe table and the basepiece with a nut I, while between said nut I andthe table g a spring J is disposed around the screw, the spring upon therear screwbein g about twice the strength of either of the springs uponthe front screw.

The nut 1" is provided with a shoulder '13, which rests upon the table.Turning the screws I and adjusting the nut-s I raise and depress thetable g, which is held up by the springs J. hen the table has been setat its proper height by the above means, the tension is made greater or'less by turning the nuts I', and, if desired, the relative tension ofthe front and rear edges of the table may be regulated. Thus thevertical resistance of the bed as the agate travels over it may be madegreater or less, and such resistance may be greater on one side than onthe other,

' or at the front than at the rear, or vice versa,

in case the leather is unequal in hardness or thickness or power ofresistance.

' The lever E, which, with the lever D, constitutes a toggle-joint orjointed lever, takes the place of what is usually termed in machines ofthis character the pendulum. In this class of machines the pendulum isusually straight and swings between two brackets, each of which isconnected with the pendulum by a link or lever. It is found in practicethat the pendulum and arms or levers are apt to lack rigidity and thatthe latter often fail in exact uniformity and similarity of action, thuscausing the pendulum to become a trifle one-sided or to spring or tobear unequally upon the leather. My pendulum E is spread centrally intothe bow E and is connected pivotally at its upper end, at E", with thearms K, pivotally connected at K to the frame A. This frame is providedwith brackets L, which extend forward on opposite sides of the bow.Secured to the under sides of these brackets are boxes L for theaccommodation of a shaft- N, which extends from one box to the otherthrough the bow E. Arms or links P extend up from said shaft N onopposite sides of the bow E and have their upper ends pivotallyconnected to the opposite upper portions of said bow. Thus it will beseen that as the pendulum is reciprocated over the surface of theleather S by the pulley-wheel B and connecting-rod b itis supported andguided on opposite sides by the brackets L and arms or links P; butowing to the provision made by the bow E for the shaft N said brackets Land arms P are connected not only with the pendulum but with each other,so that the motion of the parts P is absolutely uniform and similar,supports the pendulum equally, and prevents any lack of rigidity, orspring or lateral or one-sided action.

The shape of the bow may be varied as desired, provided its opening isof sufiicient size to. accommodate the relative movement or swing of theshaft N.

The holder, termed in this specification an agate-holder or hand, may beemployed and adapted to hold an agate, glass, roll, or other article forglazing, polishing, dicing, or pebbling leather.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a machine of the character described, the frame; the bed; thedriving mechanism and connecting-rod Z) extending therefrom, thependulum pivotally supported at its upper end by the frame andcomprising a toggle consisting of a long upper arm or lever and theshort lower arm or lever D provided on the under surface of its bottomplate D" with the central, downwardly-extendin g, substantially V-shapedrib; and the hand or agate-holder held pivotally against said rib andadjustably secured to said plate D on opposite sides of the rib, wherebythe angle of the agate-holder may be altered and set and thereby adaptedto cause the agate to bear evenly upon the leather to be treated,substantially as described.

2. In a machine of the character described, the frame; the bed; thedriving mechanism and connecting-rod Z) extending therefrom, thependulum pivotally supported at its upper end to the frame andcomprising a toggle consisting of a long upper arm or lever and theshort lower arm or lever D provided on the under surface of its bottomplate D" with the central, downwardly-extending, substantially V- shapedrib; and the hand or agate-holder F provided on its upper surface with agroove adapted to receive and center said rib; and mechanism connectingsaid agate-holder F and bottom plate D whereby the angle of the formerwith relation to the latter may be adjusted, substantially as set forth.

3. In a machine of the character described,

the frame; the bed; the pendulum pivotally connected at its upper end tothe frame and formed on its lower end with a rib extending downwardlytherefrom in line with the stroke of the pendulum; mechanism forreciprocating said pendulum over the surface of the bed; and a hand orholder pivoted or fulcrumed upon the under edge of said rib and therebyadapted to be swung and adjusted at right angles with the line ofdirection of the stroke of the pendulum, substantially as described.

4c. In a machine of the character described, the frame; the base-pieceII supported by the frame and provided with three triangularly-locatedfixed nuts h; the table 9 above the base piece and supporting the bed;the screws or bolts I engaged by said nuts and extending up through thebase-piece and table; the nuts I on the upper ends of said bolts abovethe table; the nuts 1 upon said bolts between the table and thebase-piece;

and the springs J upon said bolts between the nuts I and the table,substantially as and for the purpose set forth.

5. In a machine of the character described, the frame; the pendulumconsisting of the jointed arm or toggle E, D, the main portion E of saidpendulum being formed into a bow E; arms or brackets extending from theframe on opposite sides of said pendulum; a shaft or rod connecting saidarms and extending through the bow of the pendulum; and the links Pextending from said shaft orrod on opposite sides of the bow andpivotally connected at their upper ends with opposite sides of thependulum, substantially as described.

CHARLES A. SOUTIUVICK.

Witnesses:

HENRY W. \VILLIAMS, A. N. BoNNEv.

